Driving mechanism for soil pulverizers



Mrd 5, 1929,

Filed Jan. 9l 1928 2 Sheeyslqeet l ATTORNEY March 5, 1929. G. F. scHx-:cKLER DRIVING IIECHANISM FOR SOIL PULVERIZBRS Filed Jan. 9, 1928 2 Sheets-Sheet 2 ATTORNEY Patented Mar. 5, 1929.

UNITED STATES PATENT OFFICE.`

GORDON F. SCHECKLER, OF STOCKTON, CALIFORNIA, ASSIGNOR OF ONE-HALF ROSCOE C. ZUCKERMAN, F STOCKTON, CALIFORNIA.

DRIVING MECHANISM FOR SOIL PULVERIZEBS.

Application filed January 9, 1928.

This invention relates to improvements in ground working' implements ot that general character' `which includes a rotating drum or the like 'to be drawn behind a tractor. dirt en gaging elements projecting outwardly from the drum and driving mechanism tor the drum. The present invention deals particularly with the mechanism for rotating the drum or shatt as the case may be.

Hereto't'orc far as I am aware all such structures have been. driven. by chains or other completely eXp d meansT so that `when the structure depressed into operative engagement with the ground, the chains, etc., of course inevitably contact with the ground also, This causes abrasion and rapid wear of the chain and sprockets and frequent clogging ot the same with dirt, sometimes to an extent sufficient to cause the chain to break. Also as will be evident, it is impossibleunder such operating conditions to maintain `the driving mechanism in a proper lubricated conditihn and as a resultl such mechanism soon wears out even it' it does not actually break,

The principal object ot my invention thereitore is to provide a driving mechanism for such a pulverizer so constructed as to be completely inclosed so that it is properly protected from contact with the dirt and may be kept constantly and entirely lubricated. Such mechanism includes inclosed gears nfiounted in bearings provided with take-up means, and another olilject of my invent-ion is to connect the parte of the structure in such a manner thatiwhile the talroaij') means are normally concealed and protected, the parts may be easili,7 and quickly disassociatcd trom each other siiiiicient to enable the necessary adjustments to be made. without having to dismantle the entire structure.`

A further object ot the invention is to produce a simple and inexpensive device and vet one which will be exctadingly eilectivo 'tor the tulrpose tor which it is designed.

Thee( objects l accomplish by means ot such structure and relative arrangement ol parts as will fully appear by a perusal of the following specification and claims.

In theidrawings similar characters ot reference indicate correspondingr parts in the several views;

Fig. 1 is a fragmentary sectional plan view ot my improved structure.

Fie. 2 is an end elevation of the same wlth b one of the drum members removed.

Serial No. 245,424.

Reterringir nowniore particularly to the numerals of reference on the drawings, 1 denotes aA horizontal drive shaft journaled at each end in a bearing 2 supported on the rear end ot' a beam 3. These beams support the entire structure for vertical adjustment in the usual manner and the arrangement thereotl forms no part of my invention. f

Keyed onto the shaft substantially centrally between its ends is a bevel gear Ll engaged by apinion 5 which projects from a Vdrive shatt 6 extending forwardly at right angles to the shaft 1. The gea-r andpinion are linclosed in a` housing 7 which is provided at opposite ends with roller bearings S or the like tor the shaft 1 with take-upg or adjustment nuts 9 for said bearings projecting outwardly from the ends ot the housiinfr.' The opposite ends of the housing are formed with finished-surfaced bands or rings 10 concentric with the shaft 1 and having shoulders 11 at their innerends. Turriable on these bands and abutting against the shoulder are the inner ends of independent tubular drums 12ml which are secured outwardly projecting ground pulverizing elements 13 arranged in suitable longitudinally and circiunlerentially spaced relation. The type of pulverizing element itselll forms no part of myfinvention, The bands 10 are circumterentially grooved to receive rings 14 of felt or similar material, so as to maint-ain a. smooth running tit with the, drums and prevent the passa go of dirt and dust between these parts.

The drums adjacent the housing' are provided with spiders 15 having hubs `1G turnable and slid able on the shaft 1. The ends of the hubs facing the housingr have clutch jaws 17 formed thereon arranged to cooperate with similar jaws 1S formed on collars 19 which are keyed on to the shaft l, just outwardly of the adjustment nuts 9.

At its outer end each drum also hasy a huh and spider member il() engaging the shaft, slidable collars 21 heini! adj ustably tixed on the shaft outwardly of and engaging the members 20, said collars being located between said members and the bearings 2. The cutting element-s on the drums while capable of being very closely spaced along said drums, adjacent the housing must be spaced apart a til) sufficient distance to avoid theshaft 6 as will g be evident. To cause the dirt between adjathrough the cooperating' clutch hubo 16 end Spiders l5 to the po 'ipheries of the drinne.

The driving strains being 'ti'efieniitted to the drums; close to the geur, places fiest or ti' torsional Strains on the large i are Well uble to withsteiul Isuch er then on the @heit l, Wl 'eh i er thus be nitide ii 'fairly light While herring :un''le e its purpose. r he driving` ineen pletely incloeed und pro'izeetod ei the drinne end hi are parti below `the ground eui""nce.

Then it is: desi 'ed to et one el the :idjusting nuts7 the corre/sroondini;` drinn n'ienber iS disengaged frein the houeing;v bj; nereliT loosening the coller 2l und :sliding the :seine toward the adjacent end lieziring 2. The drinn muy then be freely slid lern liufise ot the shaft suilicient to Afully expose tee adjunting nut. The lutter may then be infinipulntee and it' desired the edjzieent l'elt rino' il muy also be lubricated or replaced eince this ring;` is also then Yfully eI-:noeed un Will be eif'ident.

From theforegoingv defieription it Will be readily Seen that l here produced euch e device es substantially tultille the objects et the invention, es Set iorth herein.

lVhile this Speeiiiention forti teil the present und preferred coi of the device, still in `practice .euch ne ratione 'from Such detail muy be resorted to do non torni e departure from the spirit et the invention, :is delined by the eppended cluirne.

Hoving' thus described iny invention what l cluiin ne neuv end useful und desire lo secure by Letters Potent is:

l. A soil pulverizer including; e housing, shaft euri :ded therein und projecting' tli 'ronrny :i drinn concmitric` th end Surrf inge; the ehni't outwerdl,T et the honeingr, drum haring' ground engaging i in dethereon und hnviugtiu'ningengr eje ientu'u'h n the udjucent end of the housing', dieci 'J' abledrive connections between the Shiite :in l d ruin enclosed hy the lutter? en d ineens iu the houeinr for rote` ting' the :E-Iliultn A neil pulverizer ineludinii' u housing', :i ehu'lt ourneled therein und inojee" o' thereroni, a drum concentric with end nurrouiulini` und enclosing' the e'liziit outwardly oi the houeing, seid druin having' ground engaging' elemente thereon, e clutch .ineniber lined on the el uit, e cooperating; clutch ineinber mounted in Connection With the dr un and Sepe 'e le from the lirstl neined clutch nieinber by e longitudinal movement of the drinn muy troni. the housing, `said clutch elements being; enclosed by the dinin7 n'icene normally preventing; Such movement o the drinn, und ineens in toe housing tor driving' the iduilt.

il soil pulverzer including e housing, e shaft proj acting' lhewi'tronn henri 1' menno in the houf'ingg for seid ehe tt, en adjusting nut '.tor the bei projecting' outirz rdljyT 'troni the housing?, ai drinn concentric with and lein'- roundingY the Shaft, seid drumv haring' ground engaging elementel thereon and normally hevingi' turning' engagement with 'the housing' to enclose the nut, ineens then connecting' the drum in drh/ing relation With the slmr''t, the drinn heine; nioveole longitudinally along the Shaft to dieengege ite cnivejeinent With the housing and breek its driving relation with the shaft, ineens nornuilly preventing' euch inoveiueut of the drunn und drive ineens 'tor the slnilt encloeed in the housing'.

fl. A Soil guli'erizer includingY e housing, e shaft ournnled therein und proj eetine theretroin, e drum concentric with end surrounding the shul'it outunrdljvY of the h` using', Seid drinn honing' ground engaging elemente tl'iereon, sind ineens between 'the liouein'e' und drinn to normally provide a close running tit thei'eoetiween5 the druin being inovuble longitudinzilljg.r ot' the ssh( t't to brezil; Seid iit, ineens providing e driving' connection ben the ehett en d druin only7 when the lut ter hun euch lit7 relenszible inee e ior holding the drinn :igniinet nioreinenh end ineens in the housing;v tor drm/ingthe elm'lft.

nun .ino .ohding en- ;-i clutch element 05; erneut n' li the e.;

u'nicd on the n vider meurent the homing to lie eliefftclutch element, und f mounted ou the Shell' oui,- 'lie .i'uln und normally engaging' whereof l olli); mi* Sio'nuturc.

1l llDUN l?. Sll-llilCl'iLlilR.

'fixed in the drinn adjacent 

